<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style type="text/css">
        div {
            color: brown;
            width: 100px;
            height: 200px;
            background-color: blueviolet;
        }

        span {
            background-color: rgb(59, 59, 145);
        }
    </style>
</head>

<body>
    <!-- 一块区域，独占一行 -->
    <div>123</div>
    <span>这是span1标签</span><br>
    <span>这是span2标签</span>

</body>

</html>